Mick gives the Molotov cocktail to the henchman twice.
When Mimi gets her knives out after the restaurant opening night she has dark red nail varnish on but in close ups of her chopping onions and meat she has no ball varnish.
Several references are made to Ana being an ex-KGB agent. However, the KGB was dissolved in 1991 whilst Ana would still have been a child. Following the collapse of the Soviet Union in 1991 the KGB was re-established in Russia as the Foreign Intelligence Service and would later become known as the Federal Security Service. Had she been a Russian agent she would have been working for the latter company which was established in 1995.
When Mimi is driving to the restaurant she is supposedly speeding and accelerates multiple times. The view out the back window of the car shows cars behind her in multiple lanes the same distance away. The view never matches her changes in speed.